产品介绍：
产品说明
分析说明
Assay (alkalimetric): ≥ 99.0 %
Assay (alkalimetric, calculated on dried substance): 98.5 - 101.0 %
Identity: passes test
Appearance of solution: passes test
Insoluble matter: ≤ 0.01 %
pH-value (5 %; water; 25 °C): 5.2 - 8.0
Acidity or alkalinity: passes test
Chloride (Cl): ≤ 0.0003 %
Phosphate (PO₄): ≤ 0.0005 %
Total nitrogen (N): ≤ 0.0003 %
Heavy metals (as Pb): ≤ 0.0003 %
As (Arsenic): ≤ 0.0001 %
Ca (Calcium): ≤ 0.002 %
Fe (Iron): ≤ 0.0005 %
K (Potassium): ≤ 0.002 %
Mg (Magnesium): ≤ 0.001 %
Loss on drying (130 °C): 52.0 - 57.0 %
corresponds to ACS,Reag. Ph Eur
法律信息
EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany
基本信息
| 经验(实验)分子式 | Na2O4S · 10H2O |
| 分子量 | 322.20 |
| MDL编号 | MFCD00149189 |
| EC索引号 | 231-820-9 |
产品性质
| 质量水平 | 300 |
| 等级 | ACS reagent |
| agency | reag. Ph. Eur. |
| 测定 | ≥99.0% (alkalimetric) 98.5-101% dry basis (alkalimetric) |
| 形式 | crystals |
| pH值(酸碱度) | 5.2-8.0 (25 ℃, 50 g/L in H2O, anhydrous substance) |
| mp | 32.4 ℃ |
| 密度 | 1.464 g/cm3 |
| 堆积密度 | 700 kg/m3 |
| 痕量阴离子 | chloride (Cl-): ≤0.0003% phosphate (PO43-): ≤0.0005% |
| 痕量阳离子 | As: ≤ 0.0001% Ca: ≤ 0.002% Fe: ≤ 0.0005% K: ≤ 0.002% Mg: ≤ 0.001% N: ≤ 0.0003% heavy metals (as Pb): ≤ 0.0003% |
| 储存温度 | 15-25℃ |
| InChI | 1S/2Na.H2O4S.10H2O/c;;1-5(2,3)4;;;;;;;;;;/h;;(H2,1,2,3,4);10*1H2/q2*+1;;;;;;;;;;;/p-2 |
| InChI key | RSIJVJUOQBWMIM-UHFFFAOYSA-L |
安全信息
| 储存分类代码 | 13 - Non Combustible Solids |
| WGK | WGK 1 |
| 闪点(F) | Not applicable |
| 闪点(C) | Not applicable |
